The Collections panel is accessed via the Arrow menu on the left of your UI Tool Bar or Control + C (Note: this is Control-Shift-C)

The Collections Panels provides a preview of the appearance of the each cosmetic pet, mount or emote, as well as information on acquiring them - be it Barter, Deed, Hidden Deed, quest or purchase from the LOTRO Store.

The skill to summon each collected pet or mount or to execute an emote can be dragged to a quickslot bar.

The Pet display is selected by clicking on the "cat profile" in the upper left corner.

The Mount display is selected by clicking on the "horse head proflie" in the upper left corner.

Update 17.2 added Emotes to the Collections panel. This panel displays ALL of the emotes available in the game.

The Emote display is selected by clicking on the "quotation marks bubble" in the upper left corner.

The green bar across the top of the panel shows how many total emotes there are, and how many your character has obtainted.

Emotes are listed in alphabetical order left-to right, top to bottom.

Emotes which the particular character has obtained, either by completing some in-game deed or quest, or purchased from the in-game store, are highlighted.

You can order emotes in a number of different displays by selecting the tic-boxes on the left.

When you click on an emote, the small character portrait in the upper left will show you the animation (if any) which is executed by that emote. To determine if an animation applies when mounted, click on the appropriate tic-box to the left.

Beneath the portrait will be an explanation of the source of the emote - be it a hidden deed or purchaseable from the in-game store.

2015 Festival Steeds

Emotes

Stable-masters

Stable-masters Collection: The Stable-masters collection displays all Stable-masters you have discovered, and helps you find those you have yet to discover! Each Stable-master location provides travel options, available destinations, and a link to the game map. The Stable-master Collection makes getting around Lord of the Rings Online even easier!

The following "Known Issue" was posted by Cordovan immediately after the hotfix release 13 July 2016):

"None of the available actions in the Stable-master Collection are functioning, and some text is not appearing correctly. We are working on a hotfix to address this issue.